chess



(No Model.)

H- 8v' H- f -CHESS- APPARATUS FOR' SGALING AND PIGKLIITG'METALl PLATES. I

Patnjted Mm?.A 4, l1884.

',IJNTji-EE STATES PATENT @EET-CE,

HENRY CHESS AND HARVEY B. CHESS, or PTTTSBUEG, PENNSYLVANIA.

APPAR'ATUS FOR SCALING AND P'ICKLING METAL PLATES.

SPECIFI'JATION forming part of Letters Patent No. 294,441, dated March 4, 1884.

l Application lld November 2, 1883. (No model.) u

- of Allegheny and State of Pennsylvania, have IAO ` plates.

invented a n w and useful Improvement in Apparatus for, Scaling and Fickling Metal Plates, of which the following is a full, clear, and exact description, reference beinghad to the accompanying drawings, making a part of this specification, in which- Figure l represents aside elevation of anl apparatus for scaling and pickling metal Fig. 2 isan end view of same. Fig. 3 is a detail view,\to',be referred to.

Our present invention relates to a means for easily handling and transferring the material while being' treated, :and it consists of the com bination of devices hereinafter explained and claimed.

To enable others skilled in thepart to make and use our invention, we will proceed to describe the exact manner in which we have carried it out. y

The work of handling, transferring the material, and agitating the baths during the process of pickling is disagreeable, unwholesome, and dangerous. Our apparatus provides for the removal or transfer of the sheets or plates in bulk from a wagon or carriage directly to the successive acid and rinsing tanks,with automatic agitation in them all, and thence into the steam drying-box, and finally depositing them in bulk on a wagon or carriage similar to that from which they were taken, and in a position to -be readily handled in subsequent operations. 1

In the drawings, A, A', and A" represent aA series of acid-tanks of -proper dimensions, clamped rmly side by side, and against these are secured the fresh-Water tanks B B' B", of similar size, and next to these a similar tank containing lime-water, the whole number being firmly and rigidly clamped together, and

constituting a complete set for scaling, rinsing, and neutralizing, and have imparted to them an intermittent rocking motion by a means which we will now proceed to explain, the object being to impart to the iiuid a sort of irregular current, the tendency of which will be to cleanse the metal first of the scale and then o f the acid before the metal is subjected to the steam bath C. The series of l tanks before described are firmly secured upon the transverse timbers D D D", the latter be ing` placed under the center of the tanks, and so -arranged asV to rock on a pivot or hinge at the' central longitudinal line. This pivoting keeps the whole system in place, but permits a slight rocking or seesaw motion to be given by the link E, the vlower end of which is attached to D', or at the rear, and the upper end of which is vplaced in connection with and is operated through a roller, c, playing in the cam-groove F in the wheel F'. This wheel receives a steady but slow motion from the pinion G, driven by any convenient power; but the linkE receives two rests and two opposite movements at each revolution of the wheel F', whi ch, being transmitted to the tanks, produce intermittent waves of the dilute acid, fresh water, and limewater, for the purpose hereinbefore explained. The steam drying-boxH is We place the double track I, on which the traveler K runs freely the whole length of the track.

This track in turn is suspended by chains L and stirrups L' at several points, and these chains run over pulleys M, and are attached to a common rod, N, which-is actuated by a hydraulic or steam cylinder, O, provided with a three-way valve at P, and this latter is controlled by cords p p', traversing the whole length of the system and within easy reach of the attendant at any point ofthe operation.

. The operation of our, apparatus is as follows: The wagon or carriage Q, properly loaded with the sheets or plates of y metal, placed in order, as shown in Figs. l and 3, is hauled to the acid end of the system of tanks, when a touch on the cord plowers the track with its traveler, to which'the spider R is attached. This spider is placed under the hooks 1^, which have been placed under and about the iron plates o" on the wagon, and a touch on the cord p' lifts the load of plates in bulk abovethe level of the top of the tanks.. Then lthe attendant, with but slight exertion. moves the load of plates in place over the acid-tank, and by a touch 'of the cord p he lowers the plates in bulk,with the hooks r, into the acid bath. After a proper time it4 is again'lifted by the same spider, and carried above and -dipped successively in the fresh-water tanks B, B', and B", and repeatedly dipped in each IOO tank, as in hand-rinsing, and then deposited bythe same means in the lime-water tank, when the attendant starts with another load of sheets or plates to besimilarly treated. During allv this time the tanks are being intermittently rocked, as hereinbefore described. After all remaining aeid has been completely neutralized in the lime-water bath, the plates are removed in bulk to the steam drying-box H, and thence by the same machinery to auother wagon or carriage, Q, for removal. During all this operation the piekling and rinsing is greatly facilitated by the rocking tanks, Causing currents to flow lengthwise and up and down through the interstieesor spaces between the sheets or plates. This may be further assisted by slightly bending alternate plates if they are too true and lie too closely together. These currents enable us to dis- HENRY CHESS. HARVEY B. CHESS.

\Vtnesses:

XVM. N. EASTON, THOMAS JAMES ROGERS. 

